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2214345 = 35721089
BaseRepresentation
bin1000011100100111001001
311011111111210
420130213021
51031324340
6115243333
724551550
oct10344711
94144453
102214345
111282741
128a9549
135c6b83
14418d97
152db180
hex21c9c9

2214345 has 16 divisors (see below), whose sum is σ = 4049280. Its totient is φ = 1012224.

The previous prime is 2214343. The next prime is 2214349. The reversal of 2214345 is 5434122.

It is not a de Polignac number, because 2214345 - 21 = 2214343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a d-powerful number, because it can be written as 215 + 221 + 1 + 42 + 37 + 46 + 57 .

2214345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2214343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10440 + ... + 10649.

It is an arithmetic number, because the mean of its divisors is an integer number (253080).

22214345 is an apocalyptic number.

It is an amenable number.

2214345 is a deficient number, since it is larger than the sum of its proper divisors (1834935).

2214345 is a wasteful number, since it uses less digits than its factorization.

2214345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21104.

The product of its digits is 960, while the sum is 21.

The square root of 2214345 is about 1488.0675387898. The cubic root of 2214345 is about 130.3412140774.

Adding to 2214345 its reverse (5434122), we get a palindrome (7648467).

The spelling of 2214345 in words is "two million, two hundred fourteen thousand, three hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 21089 63267 105445 147623 316335 442869 738115 2214345